INTELLIGENT VIRUS INVADES NT SERVERS A new computer virus that attacked 10 MCI Worldcom networks last week is capable of spreading throughout computer networks and scrambling the documents on those networks as it goes. "We've never seen anything this sophisticated in 10 years of doing this," says Network Associates' general manager of network security. "This is a completely new strain of virus and the first we've seen that propagates itself with no user interaction." The "Remote Explorer" virus runs on Microsoft Windows NT servers and affects common programs like Microsoft Word. Users clicking on their Word icon might experience a slight delay, but otherwise would be unable to detect the presence of the virus; meanwhile, the virus is busy corrupting files and spreading to other programs. Microsoft officials say they're "aware of other viruses that have the same characteristics," and Network Associates says it has developed a Remote Explorer detector and is working on a solution to decode the affected files. (Wall Street Journal 22 Dec 98) #!/usr/local/bin/perl -0777-- -export-a-crypto-system-sig -RC4-3-lines-PERL @k=unpack('C*',pack('H*',shift));for(@t=@s=0..255){$y=($k[$_%@k]+$s[$x=$_ ]+$y)%256;&S}$x=$y=0;for(unpack('C*',<>)){$x++;$y=($s[$x%=256]+$y)%256; &S;print pack(C,$_^=$s[($s[$x]+$s[$y])%256])}sub S{@s[$x,$y]=@s[$y,$x]}